I have about 100gb and growing that is critical for my business. File size growth is slow, so it will be years and years before it even gets to 200gb.
I have multiple local copies and a copy in google drive, but I want to leave a hard drive at my mother-in-law’s house.
I only want 2.5 form factor or smaller as my mother-in-law will be carrying it here when she comes to visit us on the city.
I’m not sure what the recommendation is. I’m not a millionaire, I’m just freelance. So, I’d like to minimize cost.
It depends how critical the data is.
SSDs and flash are great for speed, but as other comments have mentioned, they can eventually lose data more than other mediums. However this reportedly isn't likely to happen over the normal rated timespan of the devices, unless there is a critical defect.
Magnetic storage will likely last longer, and as it is a much older tech, is less likely to have firmware bugs and other problematic surprises. Plus, as you can see on https://diskprices.com/, the cheapest medium per TB remains magnetic storage.
Then there are tapes. The drives sure cost a hefty sum, but if you have loads of data to backup, this is likely the cheapest option.
Finally, optical. Optical is great in the sense that is is physically a ROM, so data cannot get compromised by mishandling or other staff mistakes; but it still can have issues with the reflective layers peeling away from disks.
So, in the end, I would personally not recommend using SSDs for data backups, out of precaution. Sure, SSDs will likely retain all data just fine for years to come, but I want to be able to store data for as long as possible, with the peace of mind that only magnetic storage will afford me. Plus, if your data is worth backing up, it is worth whatever extra price or effort you will have to do with.
As for the other options, well, they all have their use case, but I don't see much advantage for them in the general use cases. Just make backup copies of your data on magnetic drives, in a few physically different locations, with proper access control.
Thanks! I don’t mind spending some money, what I was trying to communicate is that I don’t want to spend $1000 on some solution.
I think I’ll get a mechanical drive and a few 256gb usb drive or maybe an ssd and have a few off site copies in case one medium fails.
I’ve never had an ssd go bad, but I’ve had external mechanical drives fail over time, so I’ve been hesitant to trust them.
I had SSDs go bad, and mechanical hard drives too. The major plus for me is that with HDDs, it is somewhat predictable, while with SSDs it has always been sudden (in my experience, at least).
However, there are more parameters to consider. The storage temperature, the relative humidity, to backup frequency, etc. In the end, if you want a 100% time proof solution without caring for the costs, engraving a crystal, storing it underground in a lead-lined container, is probably the surest way to go. Everything else is a compromise.
If you want a 2.5" form factor and plan on moving it in any sort of way, SSD is the way to go.
I thought mechanical drives are Ok to move around if they are powered off.
Yeah but we're talking 2.5 inch drives, and we're talking about less than a terabyte of storage. There is no good reason to pick a physical drive HDD over an SSD when they're practically the same price at that storage level. SSDs are simply safer to move, there are no moving parts, dropping an SSD isn't that concerning, dropping an HDD can easily kill it. I mean think of this this way. There IS a physical reader that goes across the entire disk. That doesn't exist in an SSD. It's hard to do, but you can realistically take a hard drive and just SHAKE it to death with your hand, make the reader fall out of place. While shaking a solid state is more like just shaking a giant flash drive.
Thanks! I decided to go the ssd route. It’s priced about the same as a usb drive of the same capacity and I have spare enclosures.